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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 43 (Can Communication System (HV) - Circuit Tests (1 Of 6) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Headlight ECU LH Communication Stop Mode [11/2018 - 02/2019] >> Description

Headlight ECU LH Communication Stop Mode [11/2018 - 02/2019]: Description

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Detection Item Symptom Trouble Area
Headlight ECU LH Communication Stop Mode Any of the following conditions are met:
  • Communication stop for "HL AutoLeveling/AFS/AHS" is indicated on the "Communication Bus Check" screen of the Techstream.

    Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 02/2019]

  • Communication stop history for "HL AutoLeveling/AFS/AHS" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "HL AutoLeveling/AFS/AHS" is 6 or more.)

    Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 02/2019]

  • Communication system DTCs (DTCs that start with U) that correspond to "Headlight ECU LH Communication Stop Mode" in "DTC Combination Table" are output.

    Refer to DTC COMBINATION TABLE [11/2018 - 02/2019]
  • Headlight ECU sub-assembly LH branch wire or connector
  • Power source circuit of headlight ECU sub-assembly LH
  • Headlight ECU sub-assembly LH ground circuit
  • Headlight ECU sub-assembly LH
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